HYDROSTATIC TRANSMISSION Russian patent published in 2018 - IPC F16H39/00 F16H61/42 

FIELD: hydraulics.

SUBSTANCE: invention relates to hydraulic actuators based on hydrostatic transmissions with an adjustable pump and a hydraulic motor. Hydrostatic transmission contains: adjustable pump (1), adjustable hydraulic motor (2), power lines (3, 4), auxiliary pump (5), discharge line (6), first drain valve (7), make-up valves (8, 9), main line (10 ), control cavity (11), piston (12), springs (13, 16, 17), cylinders (14, 15), spool (18), sleeve (19), tank (20), lever (21), control valve (22), zero-installers (23, 24), safety valves (25, 26), filter (27), spool valve (28) and second drain valve (29). Filter is used to continuously clean the working fluid at the output of the auxiliary pump. To reduce the temperature of the working fluid, a three-position valve spool valve and a second drain valve are used.

EFFECT: increase in the operational reliability of the device is achieved.

1 cl, 3 dwg